LI Xiao-bo, ZHOU Huai-chun, LUO Zi-xue, et al. TEST STUDY ON STATIC RELATIONSHIP BETWEEN RADIANT ENERGY SIGNAL AND ABSORBED HEAT IN A BOILER[J]. Thermal power generation, 2007, (1): 24-28.
DOI:
LI Xiao-bo, ZHOU Huai-chun, LUO Zi-xue, et al. TEST STUDY ON STATIC RELATIONSHIP BETWEEN RADIANT ENERGY SIGNAL AND ABSORBED HEAT IN A BOILER[J]. Thermal power generation, 2007, (1): 24-28. DOI: 10.19666/j.rlfd.2007.01.007.
TEST STUDY ON STATIC RELATIONSHIP BETWEEN RADIANT ENERGY SIGNAL AND ABSORBED HEAT IN A BOILER
摘要
通过三维温度场监控系统采集某300 MW机组燃煤锅炉燃烧火焰图像
计算得到炉膛燃烧的辐射能信号
并根据锅炉运行参数计算了锅内过程不同阶段的吸热量。计算表明
除空气预热器外
在(200~300)MW负荷范围内
辐射能信号与锅炉不同阶段的吸热量均呈线性变化。把辐射能的微分信号引入到锅炉过热器的减温调节系统后
使过热蒸汽温度最大偏差3℃
取得了良好的实际调节控制效果。
Abstract
The flame image of combustion in a boiler for 300 MW unit has been acquired through three dimentional temperature field monitoring system
and the radiant energy signal of combustion in the furnace being obtained from calculation
and the absorbed heat in different stages of process in the boiler being calculated on the basis of boiler operation parameters.The calculation shows that the radiant energy signal and the absorbed heat in different stages of process in the boiler all to be linear variation in the range of load 200~300 MW
not including the air preheater.After introducing differential signal of radiant energy into desuperheating system of the superheater
the maximal deviation of superheated steam temperature is3℃
abtaining good effectiveness in practical control.